20368250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 44388864

約数和(自身を除く): 24020614

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 103, 113, 125, 175, 206, 226, 250, 350, 515, 565, 721, 791, 875, 1030, 1130, 1442, 1582, 1750, 2575, 2825, 3605, 3955, 5150, 5650, 7210, 7910, 11639, 12875, 14125, 18025, 19775, 23278, 25750, 28250, 36050, 39550, 58195, 81473, 90125, 98875, 116390, 162946, 180250, 197750, 290975, 407365, 581950, 814730, 1454875, 2036825, 2909750, 4073650, 10184125, 20368250]

約数ペア:

[(1, 20368250), (2, 10184125), (5, 4073650), (7, 2909750), (10, 2036825), (14, 1454875), (25, 814730), (35, 581950), (50, 407365), (70, 290975), (103, 197750), (113, 180250), (125, 162946), (175, 116390), (206, 98875), (226, 90125), (250, 81473), (350, 58195), (515, 39550), (565, 36050), (721, 28250), (791, 25750), (875, 23278), (1030, 19775), (1130, 18025), (1442, 14125), (1582, 12875), (1750, 11639), (2575, 7910), (2825, 7210), (3605, 5650), (3955, 5150)]